.head {
	width: 100%;
	height: 180px;
	background-image: url(../images/index.png);
	box-shadow: 0 5px 20px rgba(0, 0, 0, .1);
}

.content {
	width: 1200px;
	margin: auto;
}

.course {
	margin-bottom: 15px;
}

.teach_course {
	background: #fff;
	width: 800px;
	float: left;
	box-shadow: 2px 4px 8px rgba(0, 0, 0, .1);
	padding: 15px;
	position: relative;
	margin-bottom: 15px;
	transition: all .3s;
}

.tag {
	position: absolute;
	top: 20px;
	right: 14px;
	height: 25px;
	margin: 1px 5px 1px 0;
	padding: 0 10px;
	font-size: 12px;
	color: #fff;
	border-radius: 2px;
	line-height: 25px;
	font-weight: bold;
	background: #3498db!important;
}

.teach_course:hover {
	box-shadow: 0px 15px 30px rgba(0, 0, 0, .1);
	transition: all .3s;
}

.cou_img img {
	float: left;
	width: 200px;
	height: 130px;
}

.title .text {
	width: 400px;
	font-weight: bold;
	font-size: 20px;
	margin-left: 236px;
}

.dtext {
	font-size: 13px;
	height: 69px;
	overflow: hidden;
	margin-left: 236.5px;
	text-indent: 1em;
	line-height: 22px;
	color: #666;
	padding-top: 15px;
}

.sp {
	margin-left: 236.5px;
}

.sp .nub {
	margin-right: 45px;
	color: #777;
}

.editcourse {
	position: absolute;
	top: 122px;
	right: 0;
}
